Gas Technician III HVAC 9052 Email to a Friend Our Gas Technician III course complies with the Technical Standards and Safety Authority (TSSA) training curriculum for the Gas Technician III certification and includes modules 1 through 9. It prepares you to write our EX 01 TSSA Gas Technician III Exam. Note(s) We also offer our similar, online HVAC 9043 Gas Technician III Theory course, which prepares you for our EX 9000 TSSA Gas Technician III Exam (Challenge). Contact Information 416-415-5000, ext. 4861 firstname.lastname@example.org Course Section(s) Available Class dates and registration for the upcoming year (September 2017 to August 2018) will be available on this website in early July 2017. Please visit this page again at that time. Some courses require you to purchase a textbook. The cost of the textbook is not included in the course fee unless otherwise indicated. If there is a textbook assigned for this course, it will be listed on the bookstore website.